A Subharmonic Injection-Locked Self-Oscillating Mixer

A subharmonic injection-locked self-oscillating mixer (s-ILSOM) at 1 GHz is reported in this paper. The proposed circuit which combines both injection-locking and mixing functions is described theoretically and experimentally. In contrast to previously reported works, only one input port is required...

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Bibliographic Details
Main Authors: Plessas, F., Papalambrou, A., Kalivas, G.
Format: Conference Proceeding
Language:English
Subjects:
Circuits
Detectors
Energy consumption
Injection-locked oscillators
Mixers
Optical harmonic generation
Phase noise
Phased arrays
Radio frequency
RF signals
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Description
Summary:A subharmonic injection-locked self-oscillating mixer (s-ILSOM) at 1 GHz is reported in this paper. The proposed circuit which combines both injection-locking and mixing functions is described theoretically and experimentally. In contrast to previously reported works, only one input port is required for both the RF/IF signal and the injection signal. Furthermore, the injection signal which is used to stabilize the oscillation is at a subharmonic of the oscillation frequency (fLO/4), with a power level as low as 20 dBm. Phase noise calculations and mixing characteristics are reported, indicating a noise improvement, and a high up-conversion gain for both fundamental and harmonic mixing. The circuit is implemented, using a GaAs FET, exhibiting an up-conversion gain of 13 dB, a phase noise of 93 dBc/Hz at 100 KHz offset, a P1dB of 18 dBm, an IP3 of 5 dBm, and a power consumption of 24 mW.
ISSN:0271-4302
2158-1525
DOI:10.1109/ISCAS.2007.377952